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Integrated test system of optical line

A comprehensive test and optical line technology, applied in transmission systems, electromagnetic wave transmission systems, electrical components, etc., can solve the problems of high cost, impracticality, poor comprehensiveness, etc., achieve portability, avoid the operation of optical fiber active interfaces, reduce cost of ownership effect

Inactive Publication Date: 2012-03-28
GUANGDONG CHANGSHI COMM
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, telecom operators have handed over the maintenance work of their non-core equipment to third-party maintenance. The daily maintenance and emergency repair of optical line facilities belong to the scope of maintenance. This kind of work requires a large number of special test equipment, such as optical power meters. , Optical Time Domain Reflectometer, Visual Fault Locator (VFL), etc. These instruments are usually used in the installation and maintenance of optical lines. However, these devices are almost independent of each other at present, which is not easy for engineers to carry And management, that is, the existing optical line special test equipment in the market is poor in comprehensiveness, not easy to manage and carry, some functions are not practical, and the cost is high

Method used

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  • Integrated test system of optical line
  • Integrated test system of optical line
  • Integrated test system of optical line

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Such as figure 1As shown, this example provides an optical line comprehensive test system, including:

[0041] CPU;

[0042] a field programmable gate array controlled by the central processing unit;

[0043] a pulse generator controlled by said field programmable gate array;

[0044] Photoelectric conversion, controlled by the pulse generator to send out corresponding light signals;

[0045] a coupler for receiving the optical signal emitted by the photoelectric conversion;

[0046] PIN tube, accepting the optical signal transmitted by the coupler;

[0047] Signal logarithmic amplification, amplifying the electrical signal output by the PIN tube;

[0048] High-speed A / D acquisition and processing, controlled by the field programmable gate array, processing the electrical signal logarithmically amplified and outputted by the signal;

[0049] a first connector, respectively connected to the coupler and the optical fiber;

[0050] Optical cable visual fault locator...

Embodiment 2

[0057] The difference from Embodiment 1 is that the pulse generator in this embodiment uses a pulsed laser to emit pulsed laser signals.

[0058] Wherein, the pulse generator adopts a pulse laser to emit a pulse laser signal, and the pulse generator is mainly responsible for driving the pulse laser to emit a pulse laser signal of a corresponding width, and injecting the optical signal into the optical fiber to be tested through a coupler; Width affects the dynamic range and distance resolution of optical time domain reflectometer (OTDR). During the measurement, according to the length of the optical fiber under test and the test accuracy requirements, an appropriate pulse width is selected to obtain satisfactory measurement results; the optical time domain reflectometer (OTDR) light source and the stable light source use the same pulse laser.

[0059] This example further adopts the above-mentioned technical features, and its advantage is that the stable light source, optical ...

Embodiment 3

[0061] The difference from Embodiment 1 is that the coupler in this embodiment adopts a Y-type optical fiber splitter.

[0062] Wherein, the coupler includes an optical fiber splitter, and the optical fiber splitter adopts a Y-shaped optical fiber splitter, which is an optical fiber splitter that splits an optical signal from one optical fiber to multiple optical fibers.

[0063] This example further adopts the above-mentioned technical features, and its advantage is that the stable light source, optical power meter and optical time domain reflectometer (OTDR) use the same optical path and share the same optical interface, and can complete multi-indicator testing with one access, which solves the problem of It solves the problem of its portability, can greatly reduce the total cost of ownership of the system, and avoids too many operations on the optical fiber active interface. On this basis, the coupler adopts a Y-type optical fiber splitter, which can well control The distri...

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Abstract

The invention provides an integrated test system of an optical line. The integrated test system comprises: a central processor; a field programmable gate array, which is controlled by the central processor; a pulse generator, which is controlled by the field programmable gate array; photoelectric conversion, which is controlled by the pulse generator to emit a corresponded optical signal; a coupler, which is used for receiving the optical signal emitted by the photoelectric conversion; a PIN tube, which is used for receiving the optical signal transmitted by the coupler; signal logarithmic amplification, which is used for amplifying an electric signal output by the PIN tube; high speed A / D collection and processing, which is controlled by the field programmable gate array and is used for processing the electric signal output by the signal logarithmic amplification; a first connector, which is respectively connected with the coupler and an optical fiber; an optical cable visual fault position indicator light source; and a second connector, which is respectively connected with the optical cable visual fault position indicator light source and an optical fiber. According to the invention, a total cost of ownership of the system can be substantially reduced; and it can be avoided that movable interfaces of optical fibers are operated too much.

Description

technical field [0001] The invention relates to an optical circuit test system, in particular to an optical circuit comprehensive test system. Background technique [0002] At present, telecom operators have handed over the maintenance work of their non-core equipment to third-party maintenance. The daily maintenance and emergency repair of optical line facilities belong to the scope of maintenance. This kind of work requires a large number of special test equipment, such as optical power meters. , Optical Time Domain Reflectometer, Visual Fault Locator (VFL), etc. These instruments are usually used in the installation and maintenance of optical lines. However, these devices are almost independent of each other at present, and it is not easy for engineers to carry And management, that is, the optical line special test equipment currently on the market, is not comprehensive, not easy to manage and carry, some functions are not practical, and the cost is high. Contents of th...

Claims

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Application Information

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IPC IPC(8): H04B10/08H04B10/075
Inventor 易旭良张保新
Owner GUANGDONG CHANGSHI COMM
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